In #MathsToday, my Y13 class really enjoyed the first five of these questions (and then the sixth shortly thereafter).

One of the most interesting and exciting Maths books I have read for some time. Very balanced on its view of Babbage and his contemporaries, and stuffed full of fascinating detail. An excellent way to do some Maths (sort of) over half term.

This is also the shape that an orange makes if you peel it in one piece starting at the top. (Presumably for similar reasons?)

Do you like maths? Do you like entertainment? Want to be entertained in a variety show about maths? Come along to the latest Clopen Mic Night and see these cool people (also me and my excellent bandmates): clopenmicnight.com/events/2025-...

Great post about teaching in the age of LLMs /AI Not #iTeachMath but pertinent to the question of what do we want our students to get out of the learning process. thewalrus.ca/i-used-to-te...

An excellent Howells-fest at #ChoralEvensong tonight.

This is very nice.

Did AI discover Prosthaphaeresis? en.m.wikipedia.org/wiki/Prostha... (No, but it is very interesting nevertheless.)

A modern paradox of the heap! What proportion of watching a film counts as watching a film?

I picked up Hardy's A Mathematician's Apology for the first time ever this week, and it is full of this. The result is that I am finding it very difficult to read. (Also the relentless classism and sexism, but that is a separate issue.)

This feels illegal @geogebra.org.

The solid pictured below is comprised of an infinite number of cubes. The cube on the far left has a side length of 1, and each successive cube's side length is 2/3 that of the one to its left. Find the volume and surface area of the solid. #math #maths #MathSky #iTeachMath

A fantastic day at the MEI Further Maths Conference today! Lots of fun thinking about difficult and interesting maths. Thank you @tombutton.bsky.social @natalievmei.bsky.social @mathemusician.bsky.social and everyone else!

SUBTRACT New post from me, on school leadership and policy. achemicalorthodoxy.co.uk/2024/10/20/s...

Have just been reminded of this issue that occurs if you allow students to write i=√(-1) #ALevelMaths

Q for yr 12 yesterday ½log(4x²)+log(3/x) Show that this expression gives the same result no matter the value of x Extension: give me another expression like this

Today's #DailyMathsLesson with U6 further pure #ALevelMaths is a classic. All these similar looking integrals with a variety of techniques!

did one of my favourite questions today "give me an example of two prime numbers that sum to a square number" then you start writing them down then you start ordering them see also "can the sum of two consecutive even numbers ever be a square number?" #mathschat #ukmathschat #iteachmath #edusky

Sadly mine have mostly gone but I do love etymology www.yesbutwhy.co.uk/blog/maths-e...

Making a matrix multiplication trick: aperiodical.com/2024/08/matr...

London Museum of Water & Steam launches urgent appeal to save their steam engines ➡️ ianvisits.co.uk/articles/lon... The London Museum of Water & Steam has launched an urgent appeal to help save the two huge steam engines housed inside its Georgian pumping station.

I was looking through the Royal Mail website for some postage information, and found this crazy restriction on tube sizes:

I hadn't realised 41 was so good, but the list up to 10 000 only has one number greater than it that even reaches 10 consecutive primes. I wonder if it can be beaten?

A quadratic function that generates primes. Will it keep generating primes forever? When will it stop? I explored prime-generating functions and ended up finding a sequence that wasn't in the OEIS - it is now! aperiodical.com/2024/05/prim...

From the archives #math #maths #mathchat #mathschat #iteachmath

calc teachers hate this one weird trick

Is this you, @presentcorrect.bsky.social ?

I am somewhere in the background of a few shots of this. It was such enormous fun, and well worth some of your time to watch. Thank you @standupmaths.bsky.social and the team for making it happen! youtu.be/LIg-6glbLkU?...

On 8 March 1619, Johannes Kepler first discovered his all important Third Law of Planetary Motion #histsci thonyc.wordpress.com/2010/03/08/o...

Some Menu Math ala @natbanting.bsky.social. I'm still tinkering with it, and je vais faire un essai poor traduire à français, but feel free to use and/or share feedback!

Start of Term CPD hit a real low point today. '95% of jobs your pupils will do don't exist yet.' 'Goldfish have a 6 second memory.' 'Maslow's hierarchy of needs.' Those 'facts' were all thoroughly debunked by the time I was training, over a decade ago. Very, very disappointing.

New! Eight years after I last blogged about A level resources, here's an update! www.resourceaholic.com/2023/12/a-le...